| Cidney | Variant of Sydney. |
| Ciel | From heaven, heavenly |
| Cielo | Spanish word meaning the sky or heaven. |
| Cienfuegos | one hundred fires |
| Ciera | A name meaning a saw or mountain range. |
| Cierra | Spanish word meaning to close or lock. |
| CIHUATON | Nahuatl word for a little woman. |
| CILI | Hungarian form of Cecilia (blind) |
| Cilicia | Ancient province of asia |
| Cilji | A name meaning a small, bright star. |
| Cilla | A diminutive of Priscilla made famous by 1960s British singer CilIa Black, who was born Priscilla White. |
| Cim | A name meaning a path or a journey. |
| Cimberleigh | From the royal meadow |
| Cinda | Abbreviation of Cynthia and Lucinda. |
| Cindel | Abbreviation of Cynthia and Lucinda. |
| Cindelyz | compound(Cynthia Ivelisse) Cin(Cynthia)lyz(Ivelisse) |
| Cinderella | One who works among the ashes. |
| Cindi | Abbreviation of Cynthia and Lucinda. |
| Cindia | Abbreviation of Cynthia and Lucinda. |
| Cindra | Cindra is a variant of Cynthia, derived from the Greek name Kyntia, meaning 'woman from Kynthos'. |
| Cindy | Dimunitive of Cynthia, Lucinda, and Cinderella.; Derives From Cynthia; Eart; From the name CYNTHIA |
| Cinnamon | A fragrant spice from tree bark. |
| Cinnia | A name meaning a beautiful flower. |
| Cinnie | A short form of Cynthia or Cinnia. |
| Cinthana | A name meaning a moon goddess. |
| Cinthia | One of the names of the mythological moon goddess Artemis referring to her birth on Mount Cynthus. |
| Cinxia | A name referring to Juno. |
| CINYRAS | myth name (founded the cult of Aphrodite) |
| Cinzia | Variant of Greek name Cynthia - one of the names of the mythological mood goddess Artemis referring to her birth on Mount Cynthus. |
| Ciorstag | The Scottish form of Christina. |
| Ciorstan | A Gaelic name meaning follower of Christ. |
| Cipriana | A name meaning one from the island Cyprus. |
| Cira | Variant of Cyril. |
| CIRCE | According to Greek mythology, this African witch transformed the Greek troops of Odysseus into swine.The classical Greek pronunciation of her name is KEAR-kay. |
| Ciri | Variant of Cyril. |
| Cirila | A Greek name meaning a noble lady or lord. |
| Cirilla | Mistress: lady. Feminine of Cyril. |
| Ciroon | A name meaning a bright, shining star. |
| Cis | Hard, difficult, straw, for age. |
| Cisleu | Rashness, confidence. |